i think there are a few dealers in klang valley who have quite a large range for panerais.
for pams, it is important that u see them in flesh and try them on.
although they look similar, but they are very much different from one another.
if your budget is below 15k, then u have the 0 and 5 which are the best bets and basically fly off the shelves. i have never seen a 0 and 5 in an AD LOL. these models are their "BASE" models with no complications or functions whatsoever (manual winding also).
if your budget is below or around 20k, then u can try the 111, 112, 312. basically more money is spent because u get additional features like display caseback, and maybe even a date function and automatic winding with the 312. on the 312 you also get the very nice and sexy 1950s case.
if your budget is around 25k, then u have a lotttt of pams to choose from. you can choose special editions, vintages, etc etc etc etc.
my advise, go view them first, but don't be swayed by the salesperson. after seeing what u think u like, come back here and tell us what u have seen.